I'm hoping someone can help with this situation, which you will see at the end, is rather unique.

Last week I switched from my 8700c to the 8100 Pearl (remaining on Cingular). I absolutely love this device, but that is something for another thread. I brought the Pearl home and used the Desktop Manager to execute the "Switch Blackberry Device" (or is "Change Blackberry Device"? You know the one I mean.). The wizard executed successfully and everything was transferred from my 8700 to the Pearl.

Now, let me preface this next part by saying that I had absolutely no problems using the WAP Browser, connecting to MediaNet, or even using third-party apps like Jive Slide on my 8700. Everything worked flawlessly.

Once I had transferred everything to my Pearl, I attempted to use Jive Slide. No go, tunneling error. I tried to open up the WAP browser. Sorry, unable to connect. Send an MMS message? Nope, red X.

To be clear, I have NO PROBLEMS with the regular internet browser or sending and receiving emails or text messages. This is only the WAP browser and MMS that will not function.

Now, being the good forum member that I think I am, I've searched for a fix, but couldn't find one. However, I have tried several things that I either picked up from the articles I've read or just from my own knowledge, to no avail. I'm hoping the collective may be able to solve this issue.

What I have tried:

I have gone into the TCP and tried every different comination of username: , , ,

I have deleted what I believe to be the service books responsible for these two items and have had them resent.

I've re-registered with the network many times.

Now, this is where it gets REALLY interesting. About four months ago, I switched my account from the $44.95 Unlimited Plan to the $29.99 Personal Plan. A month later, I noticed that both plans were still on my bill. I called Cingular and they apologized, gave me a credit, and told me everything was fixed. The next month, I noticed that I had NO DATA PLAN on my bill, but I was STILL RECEIVING DATA. I figured the situation would correct itself, but it's been a few months and it has not. In fact, when I bought the Pearl at my local Cingular store, the clerk asked me if I wanted to ADD a data plan to my account because I didn't have one. I told him no and everything still works fine. Well, everything except for the WAP/MMS issue.

It is because of this free data plan that I am receiving that I am reluctant to call Cingular CS and ask them what the issue is. I'm hoping that I can fix it on my own and continue with the luck that I have been enjoying.